Data Offers in Catalog should show existing Contracts

[richardtreier]

Feature Request

Description

When you negotiate a contract for a data offer in the catalog, it gets the green check-mark. This green check-mark disappears on refresh.

Example

Start with browsing a catalog:

Negotiate a contract. A green checkmark is shown

And remains, when closing the dialog

But after a refresh its gone:

Implementation

needs #333
needs #403

Tasks

Preview Give feedback

1. Our new Catalog UI API Wrapper endpoint should contain a data offer's negotiated contracts (key is endpoint + asset id).
2. Possibly link an existing contract-agreement so we can directly navigate to the contract agreement from a data offer that has some negotiated contracts (one data offer can have multiple policies it's available under and multiple contract agreements!)
3. Implement this in the UI.

[AbdullahMuk]

@simritbhatia and @AbdullahMuk requires more information to understand the context

[SebastianOpriel]

This is simply a UI issue - nothing to involve designing. I adjusted the issue with example screenshots